Applicability of the NGA model in Lushan earthquake region

被引：0

作者：

Ji K. ^{[1
]}

Wen R. ^{[1
]}

Ren Y. ^{[1
]}

Wang H. ^{[1
]}

Huang X. ^{[1
]}

机构：

[1] Key Laboratory of Earthquake Engineering and Engineering Vibration of China Earthquake Administration, Institute of Engineering Mechanics, China Earthquake Administration, Harbin, 150080, Heilongjiang

来源：

Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2016年 / 35卷

关键词：

Geomechanics; Ground motion; Lushan earthquake; NGA model;

D O I：

10.13722/j.cnki.jrme.2014.1374

中图分类号：

学科分类号：

摘要：

The Mw6.7 Lushan earthquake on April 20, 2013 provided the opportunity to validate the applicability of American Next Generation Attenuation Relationship(NGA-West 1 and NGA-West 2 model). A total of 42 free-field strong-motion recordings within the rupture distance of 200 km were used in this study. Firstly we established an empirical attenuation relationship for the peak ground acceleration and spectral acceleration. The residuals analysis shows that the model can properly reflect the attenuation tendency of the parameters. It was found that the NGA models underestimate the parameters slightly in short period less than 0.2 s, overestimate significantly in long period over 1 s. Compared with the NGA-West 1 model, the NGA-West 2 model not only performs better for the discreteness of short period spectral acceleration, but also reduces the residuals in long period © 2016, Science Press. All right reserved.

引用

页码：2990 / 2999

页数：9

共 22 条

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